enclosure style

A dynamic effect that sounds like your guitar tone is being played through an amp breaking up. Overdrives are more subtle than distortion effects. To achieve the original overdrive effect, a valve or vacuum tube amplifier would be “overdriven” by increasing the gain to the limits of the tubes. At this point, the vacuum tube can’t handle the voltage, starts “breaking up”, and adding extra overtones to the signal giving the sound distortion.

Overdrive pedals are generally placed in front of the amplifier to simulate the “break up” at lower levels before it reaches the power amp.